JPH0347874Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a film bonding device for transparent polyfilm (polyethylene film) and plastic bags used for packaging frozen foods and home freezing, for example.

[Technical background of the invention]

As shown in FIGS. 1 and 2, this type of film bonding device that has already been proposed includes a double roll film (a strip-shaped plastic bag forming A film storage section 3 is formed into which a roll film 2 is loaded, and the double roll film 2 is rotatably mounted in the film storage section 3, and the double roll film 2 is unfolded to open a drawer passage. A cutter groove 5 through which the cutter 4 reciprocates is formed in the upper plate 1a of the case body 1 to be formed so as to be perpendicular to the pull-out passage, and the double roll film 2 is placed in the upper plate 1a close to the cutter groove 5. Seal heaters 6 for heating and welding are installed in parallel, and on the other hand, the upper plate 1a of the case body 1 is
The lid body 7 is pivotally attached to the cutter groove 5 so that it can be opened and closed freely.
A cutter guide groove 8 is formed in the lid body 7 located directly above the cutter guide groove 8, and a heater holding cushion material 9 is provided inside the lid body 7 near the cutter guide groove 8.
and film holding cushion material 10 are arranged side by side.

Therefore, the above-mentioned film bonding device has the lid body 7.
By opening the lid, pulling out the double-rolled film 2 by a required length from the film storage section 3, and then closing the lid 7, the double roll film 2 protrudes from the inside of the lid 7. The projection 11 turns on the switch 6d of the seal heater 6, which is sunk in a part of the case body 1, and at the same time turns on the indicator lamp 12 for a certain sealing time and then turns it off. The cushion material 9 for holding the heater and the cushion material 10 for holding the film.
They work together to heat and weld the double roll film 2 by pressing it against the seal heater 6.

In this way, after the indicator lamp 12 goes out, the cutter 4 is slid back and forth once along the cutter groove 5 and the cutter guide groove 8, thereby removing the double roll film close to the sealing portion. 2 is designed to be cut as a bag body.

In this way, the double roll film 2
The bag body 2' is formed, and then, after storing food, for example, in the bag body 2', the opening of the bag body 2' is heated and welded by the seal heater 6 as described above. It is designed so that it can be sealed.

[Problems with background technology]

However, when the above-mentioned film bonding device stores food in a bag, air also flows in as the food is stored, so the bag becomes bulky and large due to the amount of air that flows in. This makes it difficult to store food in refrigerators and freezers. Not only is the amount limited, but when sealing the opening of the bag, one is forced to hold the bag with one hand, making it difficult to exhaust air from the bag and seal it.

[Purpose of invention]

In order to solve the above-mentioned difficulties, the present invention has been developed to suction and exhaust the air inside the bag when sealing the opening of the bag containing food, and also to eliminate the need to hold the bag by hand. It is constructed so that the opening of the body can be heat welded.

[Summary of the idea]

The present invention is a film bonding device equipped with a seal heater and a cutter, in which a film storage section capable of storing a double roll film is formed on the upper plate of the case body, and the upper plate of the case body near the film storage section is formed on the upper plate of the case body. A pair of film holding members are provided on the upper plate of the case body located between the two film holding members so that a vacuum suction pipe can be inserted into the opening of the double roll film. It is designed and configured as follows.

[Example of idea]

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In addition, the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

In FIGS. 3 to 12, reference numeral 1 denotes a case body in the form of an elongated box, and the upper plate 1a of this case body 1 is covered with a double roll film (a belt-shaped double roll film forming a plastic bag). A film storage section 3 into which a film (film) 2 is loaded is formed, and the double roll film 2 is rotatably provided in this film storage section 3. Further, on the upper plate 1a of the case main body 1, which forms a pull-out passage by rolling out the double-rolled film 2, a cutter groove 5 for reciprocating the cutter 4 is formed perpendicular to the pull-out passage. Seal heaters 6 for heating and welding the double roll film 2 are arranged in parallel on the upper plate 1a close to the cutter groove 5.

Note that, as shown in FIG. 6, this seal heater 6 has a tape-shaped heat insulating material 6a on the upper plate 1a.
A heater 6b and a heat-resistant tape 6c are attached to the heat insulating material 6a.

On the other hand, a lid 7 formed to cover the upper plate 1a of the case body 1 is pivotally attached to the upper plate 1a by hinges 13 so as to be freely openable and closable, and the cutter groove 5
A cutter guide groove 8 is formed in the lid body 7 located directly above the cutter groove 5 . Further, on the inner side of the lid body 7 near the cutter guide groove 8, a heat-resistant heater holding cushion material 9 and a film holding cushion material 10 are arranged in parallel. When the lid body 7 is closed, the material 9 is pressed against the seal heater 6 with the developed double roll film 2 interposed therebetween, and the material 9 is pressed against the seal heater 6 by the action of the seal heater 6 and the heater holding cushion material 9. The heavy roll film 2 is heated and welded. Further, a projection 11 is vertically provided on a part of the inner side of the lid 7, and a switch for the seal heater 6 is installed on the upper plate 1a of the case body 1 located directly below the projection 11. 6d has been sunk. Furthermore, on the case body 1 near the switch 6d, an indicator lamp 12 lights up for a certain period of time, and then
It is attached so that it turns off.

On the other hand, a film presser 14 is rotatably attached to the base of each hinge 13 so as to press the double roll film 2 from above. As shown in FIG. 8, a pair of film holding members 15 are provided on the upper plate 1a of the case body 1 adjacent to each other, and are biased to fall down by the elasticity of a coil spring 16. That is, the base portion 15a of both film pressing members 15 is pivotally connected to a bracket formed on a part of the upper plate 1a by a pin shaft 17, and The rod 18 extends into the case body 1 by penetrating the upper plate 1a, and a stop washer 18a at the lower part of the presser rod 18 and the upper plate 1a are connected to each other.
A coil spring 16 is resiliently interposed between the two. In addition, each locking projection 15c is attached to the film pressing surface 15b of each of the film pressing members 15 so as to be able to fit into the small hole 19 of the upper plate 1a.

On the other hand, on the upper plate 1a of the case body 1 located between the film holding members 15, a vacuum suction pipe 20 having an L-shaped cross section is provided, as shown in FIGS. 9 and 10. , so that it can be inserted into the opening of the double roll film 2, and the elasticity of the coil spring 21 urges the lodging habit. That is, the base 20a of the vacuum suction pipe 20 is rotatably attached to each bracket 22 formed on a part of the upper plate 1a by a support shaft 23, and the base 20a and the upper plate A coil spring 21 is provided between the vacuum suction pipe 1a and a receiving member 1b attached to the back surface of the vacuum suction pipe 20 to urge the vacuum suction pipe 20 to fall down. Note that the vacuum suction pipe 20
A locking pin 20c is biased on the film pressing surface 20b so that it can fit into the small hole 24 of the upper plate 1a. A flexible bellows 25 is attached around each bracket 22 and the base 20a of the vacuum suction pipe 20 to prevent air leakage. Furthermore, a suction passage 36 is formed by a partition plate 37 in the case body 1 where the bellows 25 is located, and a fan motor 34 and an exhaust port 38 are provided in this suction passage 36. ing.

Next, the electric circuit shown in FIG. 12 is a circuit diagram incorporated in the present invention, and this electric circuit is
Power supply circuit 2 including a power supply 26 and a capacitor 27
8 is provided with a power switch 29 and a transformer 30,
A seam heater 6 and an indicator lamp 12 are provided in parallel to the power supply circuit 31 on the secondary side of the transformer 30, and a thermistor switch 6d is provided near the indicator lamp 12. A fan motor 34 equipped with a diode 33 and a capacitor 35 are provided, and a changeover switch 32 is attached to the fan motor 34 and the power supply circuit 31 located near the switch 6d.

Therefore, the lid 7 is now opened, the double roll film 2 is pulled out by the required length from the film storage section 3, and then the lid 7 is closed. The protrusion 11 is the case body 1
Switch 6d of seal heater 6 installed in
At the same time as it is turned on, the indicator lamp 12 is turned on for a certain period of time and then turned off. At this time, the double roll film 2 is pressed against the seal heater 6 by the heater holding cushion material 9 and the film holding cushion material 10 to heat and weld the double roll film 2.

Next, after the indicator lamp 12 goes out, the cutter 4 is slid back and forth once along the cutter groove 5 and the cutter guide groove 8, thereby removing the double roll film 2 near the sealing portion. Cut it into a bag 2'.

Next, as shown in FIG. 7, the bag 2'
For example, after storing food F in the bag body 2',
Both ends of the opening 2a' of the bag 2' are elastically gripped by a pair of film holding members 15, and the vacuum suction pipe 20 is inserted into the opening 2a' of the bag 2'. Grasp a part of the body elastically. After that,
By turning on the changeover switch 32, the fan motor 34 is driven, so that the air flowing into the bag body 2' is sucked through the vacuum suction pipe 20, and the air flows through the suction channel communicating with the vacuum suction pipe 20. 3
6 and is discharged from the exhaust port 38, whereby the food F is stored in close contact with the inside of the bag 2'.

Next, by switching the changeover switch 32 again and closing the lid 7, the lid 7
At the same time, the protrusion 11 turns on the switch 6d sunk in the case body 1, and the indicator lamp 12 is turned on for a certain sealing time and then turned off. At this time, the opening 2a' of the bag body 2' can be pressed against the seal heater 6 and heat-welded with a heater holding cushion material 9 and a film holding cushion material 10. At this time, since the bag 2' containing the food F is held by the pair of film holding members 15, there is no need to hold the bag 2' by hand.

Incidentally, although the above-mentioned specific example has been explained so that it can be operated by placing it on a desk, for example, the design can be changed so that it can be used as a wall-mounted type without changing the gist of the present invention. You are free to do what you want.

[Effect of idea]

As described above, according to the present invention, in the film bonding apparatus equipped with the seal heater 6 and the cutter 4, the film storage section 3 capable of storing the double roll film 2 is formed on the upper plate 1a of the case body 1, A pair of film holding members 15 are provided on the upper plate 1a of the case body 1 near the film storage portion 3 so as to have a tendency to fall down. A vacuum suction pipe 20 is provided on the plate 1a so that it can be inserted into the opening 2a' of the bag 2' made of the double film, so that the air inside the bag 2' can be evacuated and items can be tightly stored. Not only is this possible, but it also has practical effects such as being able to heat and weld the opening 2a' of the bag 2' with the seal heater 6 without holding the bag 2' by hand.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a previously proposed film bonding device, FIG. 2 is a perspective view showing the lid of the film bonding device in an open state, and FIG. 3 is a perspective view of the film bonding device of the present invention. FIG. 4 is a perspective view showing the lid of the present invention in an open state, and FIG. 5 is a perspective view of the lid of the present invention.
FIG. 6 is an enlarged sectional view taken along the chain line A-A in the figure.
FIG. 5 is an enlarged sectional view of chain circle B, FIG. 7 is a perspective view for explaining the operation of the present invention, and FIG. 8 is a
FIG. 9 is an enlarged sectional view taken along chain line C-C in FIG. 7, FIG. 9 is a sectional view showing how the vacuum suction pipe according to the present invention is installed, and FIG. FIG. 11 is an enlarged sectional view of the chain circle E in FIG. 9, and FIG. 12 is an electric circuit diagram incorporated in the present invention. 1...Case body, 2...Double roll film, 3...Film storage section, 4...Cutter, 6
... Seal heater, 7 ... Lid body, 9 ... Cushion material for holding heater, 10 ... Cushion material for holding film, 15 ... Film holding member, 20 ...
Vacuum suction pipe, 25... bellows, 34... fan motor, 36... suction channel, 38... exhaust port.

Claims (1)

[Scope of utility model registration request] In a film bonding device equipped with a seal heater and a cutter, a film storage section capable of storing a double roll film is formed on the upper plate of the case body,
A pair of film holding members are provided on the top plate of the case body near the film storing portion, and a vacuum suction pipe is provided on the top plate of the case body located between the two film holding members. A film bonding device characterized in that it is provided so as to be able to be inserted into an opening of a bag made of the double roll film.